package com.sky.controller.user;

import com.sky.constant.StatusConstant;
import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@Api(tags = "C端-菜品浏览接口")
@Slf4j
@RequestMapping("/user/dish/list")
@RestController("userDishController")
public class DishController {
    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */
    @GetMapping
    @ApiOperation("根据分类id查询菜品")
    public Result<List<DishVO>> list(Long categoryId){

        //查询redis中是否有数据
        String key = "dish_" + categoryId;
        List<DishVO> list = (List<DishVO>) redisTemplate.opsForValue().get(key);

        //有数据则读取并返回
        if(list != null && list.size() > 0){
            log.info("根据分类id查询菜品{}--redis",categoryId);
            return Result.success(list);
        }

        log.info("根据分类id查询菜品{}--MySQL",categoryId);

        //无数据则查询数据库并写入redis
        Dish dish = new Dish();
        dish.setCategoryId(categoryId);
        dish.setStatus(StatusConstant.ENABLE);

        list = dishService.listWithFlavor(dish);
        redisTemplate.opsForValue().set(key,list);

        return Result.success(list);
    }


}
